One species: Bangladesh, Bhutan, India, Nepal, Pakistan; cultivated more widely, including in China.

W. C. Ko (in FRPS 71(2): 119. 1999) estimated six species of Spermadictyon, but all other authors seen report only one species. Ko described the fruit as having a septum disappearing early and the seeds as having a loose aril, but the meaning of these is not entirely clear and does not correspond to morphology described elsewhere.